A free app for Android, by Truck Driving Bus Simulator Games.

Mud Truck Driving Games Offline is an action-packed adventure where you get to drive a variety of heavy vehicles, including the 4×4 heavy truck, the 6×6 spin tires, and the euro cargo truck. You will have to drive on various muddy and impossible crazy tracks, which will test your driving skills and get you closer to the adrenaline-filled experience of driving on the real off-road tracks.

You will be able to enjoy the game offline without any of the extra costs. You will not have to pay anything to play the game.